Home / 78,801,082,058.48-118,319,571,098-68,210,153,801.76

Finding the Fourth Proportional to 78,801,082,058.48, 118,319,571,098 and 68,210,153,801.76

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Solution

The fourth proportional to 78,801,082,058.48, 118,319,571,098 and 68,210,153,801.76 is: 102,417,326,406.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,801,082,058.48 : 118,319,571,098 = 68,210,153,801.76 : x
  2. Step 2: Convert to fraction form
    78,801,082,058.48/118,319,571,098 = 68,210,153,801.76/x
  3. Step 3: Cross multiply
    78,801,082,058.48x = 118,319,571,098 × 68,210,153,801.76
  4. Step 4: Simplify right side
    78,801,082,058.48x = 8,070,596,142,352,857,825,280
  5. Step 5: Solve for x
    x = 8,070,596,142,352,857,825,280/78,801,082,058.48
  6. Step 6: Final answer
    x = 102,417,326,406.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.